[chimerax-users] Aligning a trajectory to its first frame

[Elaine Meng]

Hi Shubham,
The "coordset" command for playing back trajectories and the "coordset slider" command for showing a slider interface both have a "holdSteady" option for specifying which atoms to fit between frames:

<https://rbvi.ucsf.edu/chimerax/docs/user/commands/coordset.html>
<https://rbvi.ucsf.edu/chimerax/docs/user/commands/coordset.html#slider>

I hope this helps,
Elaine
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Elaine C. Meng, Ph.D.                       
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco


> On Jun 29, 2022, at 12:30 AM, Shubham Devesh Ramgoolam via ChimeraX-users <chimerax-users at cgl.ucsf.edu> wrote:
> 
> Hi all, 
> I hope you are doing well.
> Is there a way to align all the frames of a trajectory to its first frame for the purpose of visualization? 
> I’m trying to visualize a residue pair in a trajectory and I have done the following:
> select both residues; view sel; play the movie.
> The issue here is that the position of the pair changes (the pair rotates across the screen) with the frame.   
> Regards,
> Shubham Ramgoolam